Bath tub



FIG. 1 is a perspective view taken from the top, front and right end ofa bathtub showing my design;

FIG. 2 is a left end elevation thereof;

FIG. 3 is a rear elevation thereof, the center being broken away toillustrate the contour of the tub;

FIG. 4 is a bottom view thereof; and

FIG. 5 is a top plan view thereof.

The ornamental design for a bath tub, substantially as shown anddescribed.